<template>
  <div>
    <!--商品分类全局组件-->
    <TypeNav />
    <!--主体部分-->
    <div class="main">
      <div class="py-container">
        <!--bread:面包屑-->
        <div class="bread">
          <ul class="fl sui-breadcrumb">
            <li>
              <a href="#">全部结果</a>
            </li>
          </ul>
          <ul class="fl sui-tag">
            <!-- 面包屑展示分类的名字 -->
            <li
              class="with-x"
              v-if="sParams.categoryName"
              @click="removeCategory"
            >
              {{ sParams.categoryName }}<i>×</i>
            </li>
            <!-- 面包屑展示关键字的地方 -->
            <li class="with-x" v-if="sParams.keyword">
              {{ sParams.keyword }}<i @click="removeKeyword">×</i>
            </li>
          <!--品牌的面包屑的展示-->
          <li class="with-x" v-if="sParams.trademark">
              {{ sParams.trademark.split(":")[1]
              }}<i @click="removeTradeMark">×</i>
            </li>
            <!--平台属性值:数组-->
            <li
              class="with-x"
              v-for="(item, index) in sParams.props"
              @click="removeAttrValue(index)"
            >
              {{ item.split(":")[1] }}<i>×</i>
            </li>
          </ul>
        </div>

        <!--selector:search路由子组件-->
        <!--品牌结构[trademark]-->
        <!--平台属性与属性值的结构--->
        <SearchSelector
        @getTradeMark="getTradeMark"
          @getAttrAndValue="getAttrAndValue" 
        />

        <!--details-->
        <div class="details clearfix">
          <!--排序的结构-->
          <div class="sui-navbar">
            <div class="navbar-inner filter">
              <ul class="sui-nav">
              <!-- li标签拥有active类名高亮 -->
                <li :class="{active:isOne}" @click="changeOrder(1)">
                  <a>综合<span v-show="isOne" class="iconfont" :class="{'icon-shangfan':isAsc, 'icon-xiafan':isDesc}"></span></a>
                </li>
                <li :class="{active:isTwo}" @click="changeOrder(2)">
                  <a>价格<span v-show="isTwo" class="iconfont" :class="{'icon-shangfan':isAsc, 'icon-xiafan':isDesc}"></span></a>
                </li>
              
              </ul>
            </div>
          </div>
          <!--展示搜索商品的结构-->
          <div class="goods-list">
            <ul class="yui3-g">
              <li
                class="yui3-u-1-5"
                v-for="(good, index) in goodsList"
                :key="good.id"
              >
                <div class="list-wrap">
                  <div class="p-img">
                    <!--点击图片跳转到详情页，携带params参数，商品ID-->
                    <router-link :to="`/detail/${good.id}`"><img :src="good.defaultImg" /></router-link>
                  </div>
                  <div class="price">
                    <strong>
                      <em>¥</em>
                      <i>{{ good.price }}</i>
                    </strong>
                  </div>
                  <div class="attr">
                    <a :title="good.title"> {{ good.title }}</a>
                  </div>
                  <div class="commit">
                    <i class="command"
                      >已有<span>{{ good.id ** 3 }}</span
                      >人评价</i
                    >
                  </div>
                  <div class="operate">
                    <a class="sui-btn btn-bordered btn-danger">加入购物车</a>
                    <a class="sui-btn btn-bordered">收藏</a>
                  </div>
                </div>
              </li>
            </ul>
          </div>
          <!--分页器结构:整个前台项目比较重要知识点-->
          <div class="fr page">
              <!--
                total:总共需要展示数据条数
                pageSize:一页展示几条数据
                pageNo:当前页码
                pager:中间连续页码
                pageSizes:让用户自己选择一页展示几条数据
                //自定义事件
                currentPage:儿子给父组件传递当前页码
                sizeChange：儿子给父组件传递当前这一页到底显示几条数据


              -->
              <Pagination :total="total" :pageSize="sParams.pageSize" :pageNo="sParams.pageNo" :pager="5" :pageSizes="[5,7,9,11]" @sizeChange="sizeChange" @currentPage="currentPage" ></Pagination>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import SearchSelector from "./SearchSelector/SearchSelector";
import { mapGetters,mapState } from "vuex";
export default {
  name: "Search",
  data() {
    return {
      //定义响应式数据:专门收集用户搜索条件，将来发请求给服务器携带data参数
      sParams: {
        category1Id: "",
        category2Id: "",
        category3Id: "",
        categoryName: "",
        keyword: "",
        props: [],
        trademark: "",
        //默认初始值条件
        order: "1:desc", //综合降序
        pageNo: 1, //当前页码第一页
        pageSize: 6, //每页商品数量默认是10
      },
    };
  },
  components: {
    SearchSelector,
  },
  //当路由组件挂载完毕，需要通过vuex发请求[其实没有搜索的条件]
  //生命周期函数常用八个:面试经常问到
  //初始化阶段beforeCreate|created|beforeMount|mounted
  //更新阶段:beforeUpdated|updated
  //销毁阶段:beforeDestroy|destroyed
  beforeMount() {
    // this.sParams.category1Id = this.$route.query.category1Id;
    // this.sParams.category2Id = this.$route.query.category2Id;
    // this.sParams.category3Id = this.$route.query.category3Id;
    // this.sParams.categoryName = this.$route.query.categoryName;
    // this.sParams.keyword = this.$route.params.keyword;
    //简化写法:需要复习复习！！！！！
    Object.assign(this.sParams, this.$route.query, this.$route.params);
  },

  mounted() {
    //home跳转到search:在发请求之前收集数据
    //把搜索商品的接口函数专门封装一个函数里面
    //将来只要调用函数一次，向服务器发一次请求
    this.getGoodsList();
  },
  methods: {
    //home跳转到search:在发请求之前收集数据
    //获取搜索商品接口
    getGoodsList() {
      //disptach:第二个参数，是给action函数携带参数，其实就是搜索接口需要携带请求体参数[搜索条件]
      this.$store.dispatch("getGoodsList", this.sParams);
    },
    //清除面包屑的关键字
    removeKeyword() {
      //点击关键字的叉子，将收集情况,面包屑关键字消息了
      this.sParams.keyword = "";
      //通知兄弟组件Header情况文本框里面文字
      this.$bus.$emit("clearKeyword", "");
      //骚操作:清空路由params参数,万一有query参数需要保留
      //watch监听到路由的变化，会重新收集搜索条件，再次发请求
      this.$router.push({ name: "search", query: this.$route.query });
    },
    //情况分类的搜索条件
    removeCategory() {
      //情况搜索的条件
      this.sParams.categoryName = "";
      //路由自己跳自己
      this.$router.push({ name: "search", params: this.$route.params });
    },
    // 子组件绑定自定义事件
    getTradeMark({ tmId, tmName }) {
      this.sParams.tradeMark = `${tmId}:${tmName}`;
      // 再次调用搜索接口
      this.getGoodsList();
    },
    // 面包品牌叉子
    removeTradeMark() {
      // 清空收集品牌的数据
      this.sParams.trademark = "";
      // 再次发送请求
      this.getGoodsList();
    },
    //子组件绑定的自定义事件(平台属性)
    getAttrAndValue(attrName, attrId, attrValue) {
      //将子组件传递过来的商品属性与属性值收集 ---收集到了数据面包屑展示
      //参数整理成服务器需要样子
      let newParams = `${attrId}:${attrValue}:${attrName}`;
      //indexOf|includes
      if (this.sParams.props.indexOf(newParams) == -1) {
        this.sParams.props.push(newParams);
        //再次发请求
        this.getGoodsList();
      }
    },
    //面包屑属性值的叉子
    removeAttrValue(index) {
      //收集数据当中props，删除调用用户不需要的属性值
      this.sParams.props.splice(index, 1);
      //再次发请求
      this.getGoodsList();
    },
     //排序回调:收集用户最终选择的条件 +  再次发请求
    //active:形参 决定谁高亮
    changeOrder(active){
      //先获取order起始数值(data:定义的时候默认数值1:desc)
      let originActive = this.sParams.order.split(":")[0];
      let originJt = this.sParams.order.split(":")[1];
      //准备一个新的order数值进行收集最新的参数
      let newOrder = '';
      //判断用户点击一定是高亮
      if(originActive==active){
          newOrder = `${originActive}:${originJt=='desc'?'asc':'desc'}`
      }else{
        //用户点击并非高亮
         newOrder = `${active}:desc`;
      }
      //收集最新用户排序参数
      this.sParams.order = newOrder;
      //发请求
      this.getGoodsList();
    },
    //分页器子组件自定义事件回传用户选择当前页码
    currentPage(page){
      //收集参数
      this.sParams.pageNo = page;
      //再次发请求
      this.getGoodsList();
    },
    //分页器组件自定义事件回调：传入用户选择当前这也显示几条数据
    sizeChange(pageSize){
      //收集参数
      this.sParams.pageSize = pageSize;
      //当前每一个展示条数发生变化，导致总页数会变化，立马归第一页
      this.sParams.pageNo = 1;
      //再次发请求
      this.getGoodsList();
    }
  },
  //计算属性
  computed: {
    ...mapGetters(["goodsList"]),
    ...mapState({
       total:state=>state.search.searchList.total
    }),
    isAsc(){
      return this.sParams.order.indexOf('asc')!=-1;
    },
    isDesc(){
      return this.sParams.order.indexOf('desc')!=-1;
    },
    isOne(){
      return this.sParams.order.indexOf('1')!=-1;
    },
     isTwo(){
      return this.sParams.order.indexOf('2')!=-1;
    }
  },
  //根据地址栏URL变化:搜索的添加分类(query)|关键字(params)，通过监听$route监听到他们变化
  //用户想进行多次搜索，重新数据最新的搜索的数据再次发请求
  //watch:监听  属性的变化
  watch: {
    //监听路由的变化
    $route() {
      //监听到路由的变化，重新收集数据，再次发请求
      Object.assign(this.sParams, this.$route.query, this.$route.params);
      //再次根据最新的搜索条件获取数据
      this.getGoodsList();
    },
  },
};
</script>

<style lang="less" scoped>
.main {
  margin: 10px 0;

  .py-container {
    width: 1200px;
    margin: 0 auto;

    .bread {
      margin-bottom: 5px;
      overflow: hidden;

      .sui-breadcrumb {
        padding: 3px 15px;
        margin: 0;
        font-weight: 400;
        border-radius: 3px;
        float: left;

        li {
          display: inline-block;
          line-height: 18px;

          a {
            color: #666;
            text-decoration: none;

            &:hover {
              color: #4cb9fc;
            }
          }
        }
      }

      .sui-tag {
        margin-top: -5px;
        list-style: none;
        font-size: 0;
        line-height: 0;
        padding: 5px 0 0;
        margin-bottom: 18px;
        float: left;

        .with-x {
          font-size: 12px;
          margin: 0 5px 5px 0;
          display: inline-block;
          overflow: hidden;
          color: #000;
          background: #f7f7f7;
          padding: 0 7px;
          height: 20px;
          line-height: 20px;
          border: 1px solid #dedede;
          white-space: nowrap;
          transition: color 400ms;
          cursor: pointer;

          i {
            margin-left: 10px;
            cursor: pointer;
            font: 400 14px tahoma;
            display: inline-block;
            height: 100%;
            vertical-align: middle;
          }

          &:hover {
            color: #28a3ef;
          }
        }
      }
    }

    .details {
      margin-bottom: 5px;

      .sui-navbar {
        overflow: visible;
        margin-bottom: 0;

        .filter {
          min-height: 40px;
          padding-right: 20px;
          background: #fbfbfb;
          border: 1px solid #e2e2e2;
          padding-left: 0;
          border-radius: 0;
          box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);

          .sui-nav {
            position: relative;
            left: 0;
            display: block;
            float: left;
            margin: 0 10px 0 0;

            li {
              float: left;
              line-height: 18px;

              a {
                display: block;
                cursor: pointer;
                padding: 11px 15px;
                color: #777;
                text-decoration: none;
              }

              &.active {
                a {
                  background: #e1251b;
                  color: #fff;
                }
              }
            }
          }
        }
      }

      .goods-list {
        margin: 20px 0;

        ul {
          display: flex;
          flex-wrap: wrap;

          li {
            height: 100%;
            width: 20%;
            margin-top: 10px;
            line-height: 28px;

            .list-wrap {
              .p-img {
                padding-left: 15px;
                width: 215px;
                height: 255px;

                a {
                  color: #666;

                  img {
                    max-width: 100%;
                    height: auto;
                    vertical-align: middle;
                  }
                }
              }

              .price {
                padding-left: 15px;
                font-size: 18px;
                color: #c81623;

                strong {
                  font-weight: 700;

                  i {
                    margin-left: -5px;
                  }
                }
              }

              .attr {
                padding-left: 15px;
                width: 85%;
                overflow: hidden;
                margin-bottom: 8px;
                min-height: 38px;
                cursor: pointer;
                line-height: 1.8;
                display: -webkit-box;
                -webkit-box-orient: vertical;
                -webkit-line-clamp: 2;

                a {
                  color: #333;
                  text-decoration: none;
                }
              }

              .commit {
                padding-left: 15px;
                height: 22px;
                font-size: 13px;
                color: #a7a7a7;

                span {
                  font-weight: 700;
                  color: #646fb0;
                }
              }

              .operate {
                padding: 12px 15px;

                .sui-btn {
                  display: inline-block;
                  padding: 2px 14px;
                  box-sizing: border-box;
                  margin-bottom: 0;
                  font-size: 12px;
                  line-height: 18px;
                  text-align: center;
                  vertical-align: middle;
                  cursor: pointer;
                  border-radius: 0;
                  background-color: transparent;
                  margin-right: 15px;
                }

                .btn-bordered {
                  min-width: 85px;
                  background-color: transparent;
                  border: 1px solid #8c8c8c;
                  color: #8c8c8c;

                  &:hover {
                    border: 1px solid #666;
                    color: #fff !important;
                    background-color: #666;
                    text-decoration: none;
                  }
                }

                .btn-danger {
                  border: 1px solid #e1251b;
                  color: #e1251b;

                  &:hover {
                    border: 1px solid #e1251b;
                    background-color: #e1251b;
                    color: white !important;
                    text-decoration: none;
                  }
                }
              }
            }
          }
        }
      }

      .page {
        width: 733px;
        height: 66px;
        overflow: hidden;
        float: right;

        .sui-pagination {
          margin: 18px 0;

          ul {
            margin-left: 0;
            margin-bottom: 0;
            vertical-align: middle;
            width: 490px;
            float: left;

            li {
              line-height: 18px;
              display: inline-block;

              a {
                position: relative;
                float: left;
                line-height: 18px;
                text-decoration: none;
                background-color: #fff;
                border: 1px solid #e0e9ee;
                margin-left: -1px;
                font-size: 14px;
                padding: 9px 18px;
                color: #333;
              }

              &.active {
                a {
                  background-color: #fff;
                  color: #e1251b;
                  border-color: #fff;
                  cursor: default;
                }
              }

              &.prev {
                a {
                  background-color: #fafafa;
                }
              }

              &.disabled {
                a {
                  color: #999;
                  cursor: default;
                }
              }

              &.dotted {
                span {
                  margin-left: -1px;
                  position: relative;
                  float: left;
                  line-height: 18px;
                  text-decoration: none;
                  background-color: #fff;
                  font-size: 14px;
                  border: 0;
                  padding: 9px 18px;
                  color: #333;
                }
              }

              &.next {
                a {
                  background-color: #fafafa;
                }
              }
            }
          }

          div {
            color: #333;
            font-size: 14px;
            float: right;
            width: 241px;
          }
        }
      }
    }
  }
}
</style>
